Custom Semi-Polished Sapphire Tubes Al₂O₃ Single Crystal for High-Performance Optical Systems

Custom Sapphire Tubes, Semi-Polished, made from Al₂O₃ Single Crystal for Optical Instruments.
Sapphire semi-polished tubes are manufactured from optical-grade sapphire (α-Al₂O₃ single crystal). They undergo a specific polishing process that results in a surface finish quality positioned between rough-machined blanks and fully polished, mirror-finish tubes. The "semi-polished" designation indicates that the tubes have been processed to remove the majority of machining marks, achieving a uniform surface smoothness suitable for applications where a high-gloss finish is not mandatory, offering a cost-effective solution without compromising on core material properties.

The defining characteristics of these tubes derive from the intrinsic properties of sapphire and the specific semi-polished condition:

1. Superior Hardness and Abrasion Resistance:With a Mohs hardness rating of 9, these tubes are exceptionally resistant to wear and scratching, ideal for use in demanding environments with particulate matter or friction.
2. Broad-Band Optical Transmission:They provide high light transmittance across a wide spectral range, from ultraviolet to near-infrared (200 nm to 5500 nm), maintaining stable performance even at elevated temperatures.
3. Exceptional Thermal and Chemical Stability:Capable of operating continuously at temperatures up to 1900°C, sapphire also exhibits remarkable resistance to corrosion from most strong acids and alkalis.
4. Balance of Performance and Economy:
   • Versus Rough Tubes:The semi-polished surface requires less subsequent processing, saving time and cost for many applications.
   • Versus Fully Polished Tubes:Provides a more economical option for scenarios where an optical mirror finish is not critical, while still offering a high-quality, functional surface.

Utilizing this combination of properties, sapphire semi-polished tubes are employed in various high-tech sectors:

• Semiconductor Manufacturing:Components for high-temperature furnaces, viewports, and wafer carriers.
• Optical and Photonic Systems:Windows for infrared and ultraviolet equipment, lens mounts, and optical components.
• Industrial Process Control:Sight glasses for high-pressure/temperature reactors, measurement tubes in flow meters, and protective sleeves for sensors.
• Research and Specialized Equipment:Optical access points in high-pressure cells and elements in spectroscopic analysis systems.

The table below outlines key technical parameters.
Note: Specifications for "semi-polished" tubes generally fall between the ranges for standard and high-precision tubes.

1. Custom High-Hardness Pure Transparent Al₂O₃ Sapphire Tubes for Optical Applications
2. Custom Transparent High-Hardness Optical Sapphire Tubes (Al₂O₃)

Tags:#Sapphire Tubes, #Custom, #High Hardness, #Semi-Polished, #Infrared Windows, #Al2O3 Single Crystal, #Optical Instruments